Illustration of polyhedron
polyhedron
noun
poly·he·dron
ˌpä-lē-ˈhē-drən 
plural polyhedrons or polyhedra
ˌpä-lē-ˈhē-drə
: a solid formed by plane faces
Examples of polyhedron in a Sentence
Recent Examples on the Web
Domokos wanted to know if a pointy polyhedron could have a similar property.
—
Elise Cutts, Quanta Magazine, 25 June 2025
Perhaps the greatest long shot was the Bone Conductive Instrument, a wooden polyhedron designed to be held snugly to the breast, with the side of one’s face resting atop it, almost like an infant.
—Matthew Sherrill, Harper's Magazine, 19 Feb. 2025
Euler implicitly assumed his polyhedra were convex, meaning a line segment joining any two points stayed completely within the polyhedron.
—quantamagazine.org, 26 Jan. 2021
Mold that box into a pyramid or tetrahedron or any other everyday polyhedron.
—Devin Powell, Discover Magazine, 20 Mar. 2019
This polyhedron is a classic prism made from professional-grade optical crystal glass.
—Popular Science, 23 Oct. 2019
The 20th-century mathematician Aleksandr Aleksandrov proved that for every two-dimensional polygon, there is one unique way of folding it to form a 3-D polyhedron.
—Quanta Magazine, 5 Jan. 2017
And the circle packing proof tells you that there’s a polyhedron that has all its edges tangent to a sphere.
—Quanta Magazine, 19 Mar. 2018
The printer cranks out up to 150 polyhedra each year – everything from models of protein crystallography to Mars' topography.
—Stacey Smith Lang, WIRED, 1 Nov. 2001
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Elise Cutts, Quanta Magazine, 25 June 2025
Perhaps the greatest long shot was the Bone Conductive Instrument, a wooden polyhedron designed to be held snugly to the breast, with the side of one’s face resting atop it, almost like an infant.
—Matthew Sherrill, Harper's Magazine, 19 Feb. 2025
Euler implicitly assumed his polyhedra were convex, meaning a line segment joining any two points stayed completely within the polyhedron.
—quantamagazine.org, 26 Jan. 2021
Mold that box into a pyramid or tetrahedron or any other everyday polyhedron.
—Devin Powell, Discover Magazine, 20 Mar. 2019
This polyhedron is a classic prism made from professional-grade optical crystal glass.
—Popular Science, 23 Oct. 2019
The 20th-century mathematician Aleksandr Aleksandrov proved that for every two-dimensional polygon, there is one unique way of folding it to form a 3-D polyhedron.
—Quanta Magazine, 5 Jan. 2017
And the circle packing proof tells you that there’s a polyhedron that has all its edges tangent to a sphere.
—Quanta Magazine, 19 Mar. 2018
The printer cranks out up to 150 polyhedra each year – everything from models of protein crystallography to Mars' topography.
—Stacey Smith Lang, WIRED, 1 Nov. 2001
Cite this Entry
“Polyhedron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polyhedron. Accessed 11 Jul. 2025.
Copy CitationKids Definition
polyhedron
noun
poly·he·dron
ˌpäl-i-ˈhē-drən
plural polyhedrons or polyhedra
-drə
: a geometric solid whose faces are each flat polygons
Love words? Need even more definitions?
Merriam-Webster unabridged
Share